Pitch deck guide
Market slide in a pitch deck: purpose, rubric and three fixes
Last verified: October 20, 2026
The market slide of a pitch deck sizes the group of customers the company can reach first and shows how the number was built. Investors read it to judge whether the first segment is large enough and whether the founders know who pays, so a method and a source matter more than a large figure.
What this slide is for
Top-down figures such as a market of billions tell an investor little. The rubric gives its higher scores to a sized target segment and to a bottom-up count of customers times price, with sources.
What the rubric looks for
The getfund rubric v1 does not score slides one by one. It scores dimensions across the whole deck, and this slide supplies evidence for the ones below.
- Market and why now, getfund rubric v1, score 3: A size for the target segment (sourced or bottom-up) and a stated why-now
- Market and why now, getfund rubric v1, score 5: As 4, with the why-now backed by data and a path from the first segment to a larger market
Three fixes
- Replace the industry figure with the customers in your first segment times your price, and show the multiplication.
- Name the source and the year next to every market figure on the slide.
- Add one line on how the first segment leads to a larger market.
A template sentence
Fill the brackets with your own confirmed facts. Do not copy the sentence as written, and do not invent a figure to fill a gap.
[Customers in the first segment] [customer type] x [price per year] = [first segment size], source: [name and year].
The check that applies
getfund rubric v1, Market figures with a source (3 points): Every slide that sizes a market (a market word next to a money amount or a percentage) also names a source or links one: points in proportion to the sourced slides, full points when no slide sizes a market
The sourced-numbers check looks at every slide that sizes a market, meaning a market word next to a money amount or a percentage, and gives points in proportion to how many of them also name a source.
Frequently asked questions
- Do I need TAM, SAM and SOM?
- The rubric does not require the labels. It asks for a sized target segment, built from sources or from the bottom up.
- Which source counts?
- Any named report, survey or dataset with a year, or your own customer count and price. The check looks for a source word on the slide, so write it down.
- What if my market is small?
- Show it honestly and show the path to a larger one. A small, well-built number scores higher than a large figure with no source.
Sources
- getfund rubric v1, published on the pitch deck scorer page
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